Fruit and vegetables are an excellent source of vitamins, minerals, fiber and water and play an important role in promoting good health. You should aim to have plenty every day. Juicing can form part of a well-balanced diet but it is important to include it alongside the other main food groups (bread/cereals, meat/meat alternatives and milk/milk products). Sometimes, people take juicing to the extreme and go on juice cleansing diets for days at a time. Some popular myths about juice cleansing are challenged below.